SCR SYSTEM FAULT

Discussion in 'Volvo Forum' started by AlexD13, Aug 6, 2016.

  1. wireliner20

    wireliner20 Bobtail Member

    2
    1
    Feb 15, 2021
    0
    I have 2 messages on dash, one reads...power reduced due to scr system fault and the other reads...derate in 1 hour and def gauge shows empty
     
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  3. Jatt07

    Jatt07 Bobtail Member

    2
    0
    Jun 19, 2021
    0
    I had the same issue, drove little over 100 miles,, didn't loose no power yet, just stoped here, is driving it safe if i didn't loose speed?? Or get it towed??
    Thanks
     
  4. Hakotrucking1905

    Hakotrucking1905 Bobtail Member

    13
    2
    Jul 1, 2021
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    I have same issue now how did u u fix it and how long it take cost?? pls
     
  5. AlexD13

    AlexD13 Light Load Member

    266
    75
    Jun 13, 2016
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    I would advise to take the truck to a shop asap. THis can be NOX SENSORS, Or a leak in the 7th Injector, or Something do do with DEF. If you can, remove the speed sensor for now and deliver your load, and take the truck to the shop.
     
  6. Hakotrucking1905

    Hakotrucking1905 Bobtail Member

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    2
    Jul 1, 2021
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    thank u for respond..I have change nox sensor month ago I will tow it to shop tomorrow morning I got engine stop light as well and I dont know how to remove speed sensor. got long way to go for my delivery unfortunately ,hopefully I can get on road by tomorrow
     
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  7. AlexD13

    AlexD13 Light Load Member

    266
    75
    Jun 13, 2016
    0
    You will brother. Don’t worry, shouldn’t be a hard fix.
     
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  8. Hakotrucking1905

    Hakotrucking1905 Bobtail Member

    13
    2
    Jul 1, 2021
    0
    Thank you brother be safe out there
     
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  9. georgejansen

    georgejansen Bobtail Member

    9
    5
    Nov 18, 2011
    Halethorpe, MD
    0
    2018 Pete 579, I have the same issues 1 to 2 times a year. The pete shop has to fix that. It's all part of the Def dpf system. When repaired, limit your idle time or idle at 1000 plus. Cuts back on soot.
     
  10. georgejansen

    georgejansen Bobtail Member

    9
    5
    Nov 18, 2011
    Halethorpe, MD
    0
    You're correct. Sometimes the Def gauge red light imlluminates when that happens
     
  11. georgejansen

    georgejansen Bobtail Member

    9
    5
    Nov 18, 2011
    Halethorpe, MD
    0
    That has to be repaired at the pete shop unfortunately.
     
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